A cell phone company charges a $12.95 monthly service fee and $0.03 per minutes for all local calls. Find an equation that represents the monthly cell phone bill y in terms of the number of minutes used x.
y = 0.03 x + 12.95
To find an equation that represents the monthly cell phone bill, we need to take into account the monthly service fee and the charge per minute for local calls.
The monthly service fee is $12.95, and it does not depend on the number of minutes used. Therefore, we can consider this as a fixed cost.
The charge per minute for local calls is $0.03. This charge is variable and depends on the number of minutes used. Therefore, we need to multiply the charge per minute by the number of minutes used.
Let x be the number of minutes used.
The equation that represents the monthly cell phone bill y in terms of the number of minutes used x can be given by:
y = 12.95 + 0.03x
To find the equation that represents the monthly cell phone bill, we need to consider two components: the monthly service fee and the cost per minute for local calls.
The monthly service fee, which is $12.95, is a fixed amount that needs to be paid regardless of the number of minutes used. Therefore, it can be considered as a constant.
The cost per minute for local calls is $0.03. This amount is multiplied by the number of minutes used, which can vary. So, we can represent the cost per minute as a variable, let's say 'm'.
In this case, the monthly cell phone bill is the sum of the monthly service fee and the cost per minute multiplied by the number of minutes used. Hence, the equation that represents the monthly cell phone bill y in terms of the number of minutes used x is:
y = 12.95 + 0.03x
In this equation, 'x' represents the number of minutes used, and 'y' represents the monthly cell phone bill.